Final answer:
The more common name used by TMCs for the trip identifier displayed on the Trip Summary screen is PNR or Booking Reference.
Step-by-step explanation:
The more common name used by TMCs (Travel Management Companies) for the unique identifier displayed on the Trip Summary screen is PNR (Passenger Name Record) or Booking Reference.
The PNR is a alphanumeric code that is used to identify and store all relevant information about a trip, such as the passenger's name, flight details, and other associated services. It serves as a reference for all the bookings made for a specific trip.
For example, if you book a flight through a TMC and receive a confirmation number, that confirmation number is the PNR or booking reference that can be used to retrieve and manage your trip details.
The trip identifier used by Travel Management Companies (TMCs) that you are referring to is more commonly known as a Record Locator or a Booking Reference Number. This unique code is used to access and manage trip details within an airline or TMC's reservation system. It is typically a six alphanumeric character code that passengers can use to check in for flights, manage existing bookings, or connect to other services related to their trip.